Power Systems The positive (Z1), negative (Z2) and zero sequence (Z0) impedances of a transmission line follows the relation (Z1 = Z2) > Z0 any of the above (Z1 = Z2) < Z0 Z1 = Z2 = Z0 (Z1 = Z2) > Z0 any of the above (Z1 = Z2) < Z0 Z1 = Z2 = Z0 ANSWER DOWNLOAD EXAMIANS APP
Power Systems For a lossy transmission line, the characteristic impedance does not depend on The load terminating the line. The permittivity of the dielectric separating the conductor. The operating frequency of the line. The conductivity of conductors. The load terminating the line. The permittivity of the dielectric separating the conductor. The operating frequency of the line. The conductivity of conductors. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A load centre is at an equidistant from the two thermal generating stations G1 and G2. The fuel cost characteristics of the generating stations are given by F1 = a + bP1 + cP²1 F2 = a + b P2 + 2cP²2 Where P1 and P2 are the generation in MW of G1 and G2, respectively. For most economic generation to meet 300 MW of load, P1 and P2 respectively, are 100, 200 200, 100 175, 125 150, 150 100, 200 200, 100 175, 125 150, 150 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The presence of earth in case of overhead lines decrease capacitance increase capacitance decrease inducatance increase inductance decrease capacitance increase capacitance decrease inducatance increase inductance ANSWER DOWNLOAD EXAMIANS APP
Power Systems The most commonly used material for insulators of overhead lines is glass PVC porcelain mica glass PVC porcelain mica ANSWER DOWNLOAD EXAMIANS APP
Power Systems Ferranti effect occurs under no load half load any of the above full load no load half load any of the above full load ANSWER DOWNLOAD EXAMIANS APP
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